Bottle cap



FIG. 1 is a front perspective view.

FIG. 2 is a front view.

FIG. 3 is a top view; and,

FIG. 4 is a bottom view.

The bottom of the bottle cap is unornamented. The broken lines shown represent environmental subject matter and form no part of the claimed design. 

CLAIM The ornamental design for a bottle cap, as shown and described. 